Improvement in nut-machines



M. McKAIN.

NUT-MACHINE.

Patented Feb. 22,1876.

g r I- N,P ErRS, PHOTO-L THOGRAPHER WASHINGTON D O UI\ TITED S ATES M THE MQ AIN, or PITTSBURG, PENNSYLVANIA. l

j .IMPROVEMENT m NUT-MACHINES.

Specification forming part of Letters Patent No. 173,983, dated February2 2, 1876; application filed i December 18, 1875.4

To all whom it may concern: a c Be it .knownthat I, MATHEW MGKAIN, of.

' Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new, and useful Improvement, in. Nut-Machines;

1 and I do hereby declare the following to'bea Qi'ull, clear, and exact description thereof, reference beinghad to the accompanyingd'raw ing, forming a part of this specification, and

. l illustrating those parts of a nut-"machine neces- .sary to a full comprehension of the present invention:

In the drawing, Figure 1 is a side elevation of a nut-machine embodying my improvements. Fig. 2 is a section on the line a: we Fig.

1, looking in the direction'of the arrow. a Like letters of reference indicate like parts in each. c

My invention relates ,to the devices for 1 operating the swages of a nut-machine, such as is shown in LettersPatent No. 155,638, granted to William Charles and Mathew McKain, datedOctober 6th, 1874, and similar machines wherein a bla'nk is partially formed by swaging, and afterward submitted to dies for completion. Y

I will nowproceed' to describe the invention,

appertains may apply the same. V A is the bed or. frame of a nut-machine, B

u so that others skilled in the art to which it 1 the cam-yoke, provided with T-heads c which move on guides G -of the frame A; D,the brackets of the cam-yokes which operate the punch-head M; H, the die-box; .L, the pressscrew; M, punch-head for carrying the punchmandrel and punchers, and N the hangers or.

stretchers for connecting the punch-head and its cam-yokes. The T-head .0 carries dies which correspond with dies in the die-box,

and also a nicking-knife and punchesfor nicking and ingablank. 1

partially punching a' bar inform- Thedevices so far enumerated correspond with those described in Letters Patent No. 155,638, (to which reference is made for a full description of their construction and operation,) but their existing and well-known equivalents may be employed.

I are swages attached to and movable upon I the face of the die-box, arranged in thepath of the feed, and of such shape as will produce a blank of the desired configuration, be it circular, as for washers, or a pentagon, hexagon,

or other well-known shape, as for nuts. The upper swage is providedwith a retractingspring, 2', one end ofwhich is secured to the die-box H, andthe other passes under a pin or projection on, or is secured to, the swage;

thesame device being adopted, if desired, for

the lower swage, but is not generally required, as the .swagewillfall or be retracted by its own weight. .Mounted in suitable journals on the frame, at points near the the transverse cam-shafts G, provided with cams 9, so arranged as to operate upon the swages I. On the ends of the transverse shafts G are segments S, one of which is con- 7 nected by means of a crank, c, and pitn an, P,

to the shaft B, or a gear-wheel thereon,so asto obtain power therefrom through the regular crank-motion. The crank-arm c is slotted, as shown at 0', so that the motion of the cam-shaftsmay be regulated at pleasure.

'Power being applied to drive the cam-yokes, it is transmitted through the pitman and segmental gears, oscillating the canns'hafts G and causing the camarms g to operate the swages I, which, on the. reverse motion of shafts G,

are withdrawn, by springs or in other suitable manner, as before specified. According to the degreeof oscillatory motion imparted to the cam-shaft,- and its cam g, which, as before specified, can be regulated by the slotted crank 0, will be the distance through which the swages I move, thus permitting the same mechanism to be used in formingditierena, sized blanks. a. l l

Having thus described my invention, what I claim, and desire to secure by Letters Patent, 1s, In combination with the swages, the cams and cam-shafts, the latter geared to move together, and the slotted crankarm and pitman,

substantially asand for the purpose specified.

In testimony whereof I, the said MATHEW MGKAIN, have hereunto set my hand.

MATHEW MOKAIN.

Witnesses T. B. KERR, c F. BITTER, JR.

ATEN OFFICE die-box, are c y 

